Title:
ADDITIVE AGENT FOR ELECTROCHEMICAL DEVICE, METHOD FOR MANUFACTURING THE SAME, AND ELECTROLYTE SOLUTION FOR ELECTROCHEMICAL DEVICE
Document Type and Number:
Japanese Patent JP2018120761
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: an additive agent for an electrochemical device, which enables the materialization of an electrochemical device having a high initial capacity and good cycle characteristics; a method for manufacturing the additive agent; and an electrolyte solution for an electrochemical device.SOLUTION: An additive agent for an electrochemical device and an electrolyte solution for an electrochemical device each comprise a reaction product of a boroxine compound represented by the general formula, (BO)(OR)[where Rs independently represent an organic group with 1-6 carbon atoms], and a lithium hexafluorophosphate; the quantity of fluorine atoms is less than 6 times that of lithium atoms. A method for manufacturing an additive agent for an electrochemical device comprises the steps of: causing a reaction of a boroxine compound and a lithium hexafluorophosphate in a nonaqueous solvent to prepare a liquid solution containing a reaction product thereof; and performing degasification of a volatile fluorine compound to obtain a solution containing an alkyl difluorophosphate, of which the quantity of fluorine atoms is less than 6 times that of lithium atoms.SELECTED DRAWING: Figure 1
Inventors:
HARUNA HIROSHI
TERADA SHOHEI
MIZUNO SHOHEI
TERADA SHOHEI
MIZUNO SHOHEI
Application Number:
JP2017011570A
Publication Date:
August 02, 2018
Filing Date:
January 25, 2017
Export Citation:
Assignee:
HITACHI HIGH TECH CORP
International Classes:
H01M10/0567; C01B25/455; C07F5/05; C07F9/14; H01G11/64; H01G11/84; H01M10/052; H01M10/0568
Attorney, Agent or Firm:
Isono International Patent and Trademark Office
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